Leak Detection Pump

[Istrober]

So I've replaced my leak detection pump twice this year, the most recent was about 2 months ago, the gas leak light on my dash comes back again. I noticed last time it went away after i replaced it the first time, I have also changed PCV valve and gas cap. Any ideas of what could possibly be causing this problem so often?

Last thing to add is I have used oem and aftermarket valves.

Thank you in advance.